http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cem Örnek,Bilgehan M. Şeşen,Mustafa K. Ürgen 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.2
This paper provides a mechanistic understanding of hydrogen-microstructure-strain interactions in a finely-grained 25Cr–7Nisuper duplex stainless steel subjected to dynamic tensile loading. Miniature-sized tensile specimens were hydrogen-chargedfor up to nine days, and the microstructure was imaged, in-situ, during mechanical tensile testing. Digital image correlationanalysis of the recorded images revealed that the austenite phase underwent softening while the ferrite phase hardened due touptaken hydrogen. Severe strain localization occurred due to dissolved hydrogen in the microstructure resulting in hydrogeninducedcracks. Mobile hydrogen atoms caused softening of the microstructure while trapped hydrogen reasoned hardening. The austenite’s hydrogen absorption capacity is decisive for the susceptibility to hydrogen embrittlement.